约4870字。

　　Unit 16 The sea 
　　一、教学目标与要求
　　了解海洋方面的有关知识，以及海洋中生物的概况，学习并初步掌握省略的用法，是本单元的教学重点。学生通过对课文的学习，应对海洋有进一步的了解。用自己组织的语言，较为流利地介绍诸如地中海、死海以及珊瑚和海洋中某些鱼类的情况；通过对话课的学习与操练，学生进一步巩固表示愿望的用语；学习并初步掌握有关省略的用法；正确完成练习册安排的练习。
　　二、教学重点与难点
　　1．重点词汇 bathe；cycle；salty；surface；various；variety；float；occur；beg；trea-sure；voyage；do well；map one’s mind；come up；on average；leave out；cubic metre；at a time；beg one’s pardon；cross out
　　2．重要句型1）Seen from space，the earth looe．2）Besides，you will not find coral near the mouths of rivers either because the river water has too much soil in it or be-cause it is polluted．
　　3．语法 省略（Ellipsis）1）She can hold her breath longer than I can（hold my breath）．2）Coral is not a plant but（it is）a variety of animal life．3）beg your pardon？4）Haven’t seen you for ages．5）Sorry to hear that．6）This way，please．7）Sounds fine to me．8）Terrible weather！9）Have you ever been to the seaside？No，we can’t afford to．10）Don’t tell me the name of the sailor if you don’t want to．
　　4．日常交际用语 表示愿望（Expressing wishes）1）I wish we could go to the seaside today．Pity we live so far from the sea．2）I wish the weather were better．3）I wish we were on holiday．4）I wish we could go swimming．
　　三、课型
　　（一）对话课
　　Ⅰ．教具  录音机、投影仪。
　　Ⅱ．课堂教学设计
　　1．向学生提出下列问题：1） Do you like swimming？2）How many of you can swim in this class？提问几位能游泳的学生：3）If you want to swim，where do you go？4）Have you ever swum in the sea？5）Do you think swimming in the is exciting？Is it dangerous？6）I’d like to ask those who can’t swim at present one question：Do you want to learn swim-ming？Why/Why not？
　　2．准备放对话录音。借助投影片打出以下听前提问：1） Can Bruce go to the seaside with his friend today？How do you know？Please explain．2）Where did Bruce and his family spend their holidays last August？放录音一至两遍，请学生回答上述问题，教师予以必要订正。
　　Key：1）Bruce can’t go to the seaside with his friend today．Because they live so far from the sea．2）They spent their holidays on the beach last August．
　　3．再次放对话录音，学生跟读。根据本课对话内容，教师再提出一些问题，检查学生的理解程度。
　　1）Please explain the meaning of the sentence：We had a lovely holiday，one of the best ever．2）What information do you know about Li Qun’s cousin？3）What is Li Qun going to do when he leaves school？4）Please explain the meaning of the sentence：I’ll time you．